F355 Exhaust bypass valve | FerrariChat

F355 Exhaust bypass valve

Discussion in 'Technical Q&A' started by maranello71, Jul 16, 2004.

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  1. maranello71

    maranello71 Formula 3

    Jan 23, 2004
    1,221
    Chicagoland
    Full Name:
    Andre
    #1 maranello71, Jul 16, 2004
    A very simple question - where can I get a replacement exhaust bypass valve for my '96 F355 Berlinetta at the LOWEST possible price? I refuse to pay the fantasyland extortionate price that Ferrari charges for such a stupid and failure-prone part.

    I'm going to miss a very nice Ferrari meeting in Germany tomorrow because of this stupid failure...

    Any info will be very welcome.
     
  2. 355f

    355f Formula Junior

    Nov 1, 2003
    307
    #2 355f, Jul 16, 2004
    Im afraid the only place that you can get this from is ferrari. Ive had a specialistmanitain he cab fix them( that never worked) and ive had 2 units replaced thus far.

    Seems we are stuck!
     
  3. tonyh

    tonyh F1 World Champ
    Lifetime Rossa Owner

    Dec 23, 2002
    14,372
    S W London
    Full Name:
    Tony H
    #3 tonyh, Jul 16, 2004
    You might be able to pick up a reconditioned one from a specialist ; that happens here a lot.
    Good luck.
     
  4. MarkCollins

    MarkCollins F1 Rookie
    Owner

    Jul 2, 2002
    3,202
    South England
    Full Name:
    Mark Collins
    #4 MarkCollins, Jul 16, 2004
    Why are you going to miss the meet? just wire it open until you can get a new/ replacement one.

    QV London in UK had some used ones recently for around £150, might be worth a call +44 1344 622011
     
  5. yfc

    yfc Karting

    Dec 23, 2003
    212
    Geneva / Switzerland
    Full Name:
    Christophe
    #5 yfc, Jul 16, 2004
    Hi maranello71,

    The Ferrari F355 by-pass valve is manufactured by "PIERBURG". It's a German company (http://www.kolbenschmidt.de/).

    I could not find myself the F355 by-pass valve model on their Web site. May be this model is too old.

    Thanks to the product number (7-22151-02) PIERBURG may be able to give you the price. At least if they have the right to directly sale this product.

    I know that from Ferrari, this valve is charge a premium (around 700 USD).

    I hope this will help.

    Regards,
    Christophe.
     
  6. maranello71

    maranello71 Formula 3

    Jan 23, 2004
    1,221
    Chicagoland
    Full Name:
    Andre
    #6 maranello71, Jul 17, 2004
    Thanks everyone, this is brilliant. I have found the part at Eurospares for 350 English pounds (new), and QV can get me one for 150 (used or repaired).

    Regarding driving with the valve jacked open: could there be a link between this and broken exhaust headers? It seems to me that an awful lot of people that keep their valve jacked open sooner or later end up with damaged headers. My Ferrari mechanic told me the same thing - he warned me about NEVER jacking it open, or else I'll end up with a big bill to replace the headers...

    Anyway, this morning I fiddled with the valve, and I managed to move it up and down by hand. I then drove the car on a local country road, revving it hard in low gears. The noise seemed ok, no vibrations from the valve. At home my wife then stabbed the throttle a few times from idle to 5000/6000 rpm, as I checked the valve. It moved up and down perfectly. So perhaps it was just stuck (the car hasn't been driven hard for weeks) and moving it by hand has made it come loose.

    So it's all good news for now...
     

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